Most ball joints are greased with a grease gun with a good quality grease.
You can add power steering fluid to your 1988 Chevy Astro by removing the top to the power steering fluid reservoir. Pour the fluid directly into the reservoir.
Fluid is added through the transmission dipstick.
under the hood
5litres
Just northeast of the starter fluid container
You add it down the dipstick tube.
For a Chevy Astro Van, you should use DOT 3 brake fluid, which is a common type of brake fluid compatible with most vehicles. It's important to check the owner’s manual for specific recommendations and to ensure you use a high-quality fluid that meets the required specifications. Always make sure to keep the brake fluid reservoir clean and avoid mixing different types of brake fluid.
transmission behind a 4.3 on mine took 3.5 quarts
Drop the lower transmission pan Clean pan Replace filter and gasket
most likely cause is your heater core leaking
5 quarts of Dexron automatic transmission fluid (ATF) according to my Hanes repair manual
with synovial fluid